Explanation

Levins Tube is a Nasogastric (NG) tube. 
It is inserted through the Nose.

It is used for gastric suction, irrigation, and administering medication.

It is made with a clear, thermo-sensitive PVC tube

Additional information:

Two types of NG tubes are in common use:

• the single-lumen tubes (Levin)
• the double-lumen sump (Salem's sump) tubes.
  

Explanation

Somatotropin, also known as Growth Hormone (GH).

It plays a crucial role in regulating growth and development.

Excessive production of GH can lead to gigantism or acromegaly, while deficiency can result in dwarfism or growth hormone deficiency.

Explanation

• Grasslands, also known as prairies or savannas, are areas with lower rainfall than forests, typically between 50-200 mm annually.
• This lower rainfall doesn't support the growth of trees, but instead favors grasses and other herbaceous plants.

Explanation

• Flowers are the reproductive structures of plants, and they produce seeds through sexual reproduction.
• This process involves the fusion of male and female gametes (pollen and ovules) to form a zygote, which develops into a seed.

Explanation

Mutualism is a type of symbiotic relationship where both organisms benefit from each other's presence.

Examples of mutualism include:

• The birds that ride on large buffalos and elephants
• Honeybees visit male and female flowers for nectar and pollen, and the flowers get pollinated.

Explanation

Microorganisms are typically classified into three main groups:

1. Bacteria (single-celled prokaryotes)
2. Viruses (tiny infectious agents that replicate inside the cells of an organism)
3. Fungi (organisms that obtain their nutrients by decomposing organic matter or by forming symbiotic relationships with other organisms)

Explanation

• Amphibians are a group of cold-blooded animals that live in both aquatic (water) and terrestrial environments (land).
• They have moist, smooth skin that helps them to breathe and regulate their body temperature.
• Examples: frogs, toads, salamanders, and newts.

Explanation

The breakdown of hemoglobin primarily takes place in the reticuloendothelial system, which includes organs such as:

• the spleen
• liver
• bone marrow

Where macrophages are responsible for phagocytosing and breaking down aging or damaged red blood cells

Explanation

This is the most common form of Hodgkin lymphoma, Representing 95% of cases.

Medical specialists called pathologists identify Hodgkin lymphoma

By examining lymph nodes or other tissue and blood cells under a microscope for signs of Reed-Sternberg cells.

Explanation

• Omnivores can be both secondary and tertiary consumers, depending on their diet and position in the food chain.
• They can eat primary consumers (herbivores) as secondary consumers, and also eat secondary consumers (other carnivores or omnivores) as tertiary consumers.